For this case we have the following functions:

We must find
By definition we have to:

So:

We must evaluate the composite function for 

ANswer:

If the discrimination is equal to 0, there is one real solution
Answer: D, hope that helps!
Answer:
decay
Step-by-step explanation:
If you're not sure, begin by looking for any divisor that will divide into 24a^3c and 3a without leaving a remainder. Note that 3 is such a number, and a is another.
Factoring out 3a from 24a^3*c and 3a, we get 3a{8a^2*c, 1}
So the GCF is 3a.